Is it permissible to inform a suitor about matters of menstruation, its days, and its duration?

The suitor is a stranger to his fiancée, and it is not permissible for her to speak with him beyond what is allowed with other strangers. If there is a need to speak with him, and there is no fear of temptation, and her speech is not soft, then it is permissible; otherwise, it is not. One must fear Allah and avoid extensive interaction with the suitor, whether through conversation or otherwise, because it is a gateway to evil and among the steps of Satan, which leads to many corruptions.